Tandem Oil

Weapon oil. It takes one enchantment slot on a gun of rank 1 or higher, and a gun can hold only one copy.

Card text

Each shot costs 1 more durability while Tandem Oil is applied, on top of the base 1 per shot and 1 per other enchantment, up to 6.

The Baptismal Font removes it and the Chrismatory rerolls it into another oil; see oils explained.

Black Friday OilMax Durability: -30%; Projectile Amount: +200%; Damage: -30%; Spread: +30%
Bombard OilDamage: -10%; Projectile amount: +200%; Bullet weight: ×10; Spread: +1.4
Boomstick OilDamage: -25%; Projectile Amount: +200%; Recoil: +200%; Disables aiming; Spread: +150%
Careless Splitter OilDamage: -25%; Projectile amount: +300%; Recoil: +200%; Spread: +200%; Max Durability: -75%
Division OilDamage: -20%; Projectile amount: +100%; Spread: +1.7; Bullet size: -70%
Double Nothing OilDamage: -25%; Projectile amount: +100%; Loot Chance Multiplier: -100%; Spread: +0.7
Elephant OilProjectile Amount: +200%; Damage: -25%; Recoil: +10%; Move Speed: -50%; Bullet weight: ×10; Bullet size: +200%; Spread: +2
Gemini OilDamage: -30; Projectile amount: +100%; Spread: +0.7
Matrix OilBullet speed: -90%; Projectile amount: +300%; Damage: -30%; More drag; Spread: +4; Resets bullet second: +3seconds
Multichamber OilConsume Extra Ammo Chance: +100%; Projectile amount: +100%; Spread: + 100%
Multishot OilDamage: -70%; Projectile amount: +200%; Spread: +40%
Parallel Mag OilProjectile amount: +100%; Reload speed: -50%; Spread: +0.7

SULFUR Wiki entry for Tandem Oil (CC BY-SA 4.0), revised 2026-03-04. Values checked against the 1.0.0–1.0.6 patch notes.